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Anthropic Investigating Elevated Errors on Claude Opus 5.5

The AI assistant service is experiencing elevated error rates on one of its flagship models.

By The Downtime · Oct 6, 2026 · 12:30 PM ·Updated 1 week ago

Anthropic is investigating elevated errors affecting requests to Claude Opus 5.5, according to the company's status page. The incident is classified as major impact and remains under investigation.

Anthropric develops Claude, an AI assistant used by developers, businesses, and researchers through its API and consumer products.

The company posted an initial update indicating the issue and committed to providing additional details as the investigation progresses. No cause or estimated resolution time has been disclosed.

This is a developing story. We will update as Anthropic provides further information.

🕒 Live updates (3)

resolved Oct 6, 12:43 PM

The issue affecting Claude Opus 5.5 has been resolved.

identified Oct 6, 12:37 PM

We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.

investigating Oct 6, 12:24 PM

We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.

📎 Sources

Outage details are aggregated from official provider status pages. The Downtime reports them as a public service and is not affiliated with the providers named.

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